Machine for skiving heel-rands.



Patented Dec. I6, |902.

3 Sheets-Sheet I.

J. H. UNEFIWD.l MACHINE FOR SKIVING-HEEL BANDS.

(Application led Jan. 31, 1902.).

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(N0 Model.)

. No. 75,907. y v P atemed Dec. le, 1902. J. H. uunenwoon.

MACHINE FORSKIVING HEEL BANDS. (Appiiation n led .nm- 31, 1902.) (No Model.)

3 Sheets-Sheet 2.

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Patanted Dec. -I6, |902.

J. H. yUHDERWOD. MACHINE FDR vSKIVING HEEL HANDS.

(Applicltion led Jan. -81, 1 902.)

3 Sheets-Sheet 3.

(H0 Model.)

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JOHN H.IUNDERWOOD, OF MARLBORO, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO THE S. H. HOWE SHOE COMPANY,` OF MARLBORO, MASSACHU- SETTS, AND BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

SPECIFICATION forming part of Letters Patent No. 715,907, dated December 16, 1902.

Application filed January 31, 1902. Serial No. 91,982. (No model.) `V

To ctZZ whom, t may concern.-

Be it known that I, JOHN H. UNDERwooD,

a citizen of the'United States, residing in Marlboro, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvementsin Machines for SkivingHeel-Rands, of which the following is a specitication. n

This is a machine for skiving heel-rands, 1o the rand being presented to the machine in its curved or horseshoe shape and skived or beveled on its inner edge. 1n my improvement a vertically-setring-shaped rotary knife or cutter is mounted on the stationarypart of the frame, a pile of rands is fed up to the cutter, the lowest rand is skived, held down during the skiving process, and dropped, another rand presented to the cutter, and so on, the pile of rands being held in` a stack and re- 2o plenished at the top. While the rand is being operated on by the cutter, the bed or table on which it lies is swung downward at its forward edge and back into a horizontal position in order to act on the middleor closed portion of the rand and then lower the rand out of contact with the cutter.

The nature of the invention is fully described in detail below and illustrated in the accompanying drawings, in which- Figure 1 is a plan view of my improved machine with the stack removed. Fig. 2 is a vertical section taken on line X, Fig. 1, with the stack in position. Fig. 3 is an enlarged View, in vertical section, taken in front of the revolving knife. Fig. 4 is aview of the rand or product after it has been operated on by `the machine.

Similar numerals of reference indicate corv responding parts.

4o A suitable frame 1 has mounted on it a table 2, which is normally in a horizontal position. This table is provided with slideways weight 9. This stack of rands stands between the forward edge of the bed and the shoulder 10, formed bythe depression or recess 5. The rear ends of the ways 3, which form a part of the table 2, are connected by a plate 11, which is screwed at 12 to the upper surface of the table, the lower surface of said plate being higher than the upper surl face of the recessed or depressed portion 5 by the thickness of one rand.

l The table 2 is not rigid with the frame 1, but is supported thereby near its front and rear edges in the following manner: -Near the front edge it is provided on its underside with downwardly extending ears 13, extending transversely with the table on opposite sides of the horizontal shaft 14, on which are mounted eccentrics 15, Fig. 2, which are preferably four in number, as indicated by dotted lines in Fig. 1. This shaft is mounted in a suitable boX 16, supported by the frame, and has loose on it a disk-wheel17, which is, however, rigid on the frame. Fast on the shaft is an .arm 18, into suitable recesses upon the outer face of which a spring-pin 19 is held normally byaspring20. Bytheabove-described means the shaft is pivotally mounted near its forward end on the frame, resting directlyon the eccentrics 15, and may be raised or lowered by rotating the shaft by means of the arm 18 and locked in such position bythe spring-pin 19. By this mechanism the machine is enabled to cut deeper or shallower skives or bevels in the rand, as desired, in the manner below described.

The rear portion of the table 2 is supported by the cam-wheel 21, on Whose periphery rests the roll 22, secured to the lower end of the stud 23, which extendsup through the plate y the rear edge of the table is adapted to swing down and up as the cam 21 is rotated, while the front end is set pivotally at the desired elevation on the eccentrics 15. Proper adjustment is made by means of the slot 27. The cam 21 is rigid on a suitable horizontal shaft, (indicated by dotted lines 32 in Fig. 2,) and rigid on the same shaft is a gear-wheel (indicated by dotted lines 33 in Fig. 2) which is engaged by the gear-wheel 34, (shown in dotted lines in Fig. 2and in full lines in Fig. 1,) which is rigid with or on the same sleeve with the gear-wheel 35 on the fast pulley 36, communicating with the power.

The knife or cutter consists of the vertically-disposed ring 37, of which 38 is the cutting edge, said ring extending down into the space between the plate 11 and table 2, as shown in Figs. 1 and 2, and the cutting edge facing the stack of rands. This rotary cutter is rigidly secured to the ring or body portion 39 of a gear-wheel provided on its face with gear 40, said gear-wheel being secured by segmental keys 41 and bolts 42 to a ring 43, Figs. 2 and 3, said keys ,lying in coincident grooves in the gear-wheel and ring. The ring is not, however, a complete ring, as it is cut away at the bottom, as shown in Fig. 3, in order to accommodate the rand as it feeds up to the knife, and the ring is provided with braces 44, Fig. 3, to prevent eX- pansion and is integral with the bracket 45, Fig. 1, which is bolted to the bracket 46, rigidly connected with the sleeve 47 on the stud 48 and the frame. This sleeve is provided with suitable clamps 49 and is provided with the pinion 5l, which is engaged by the gearwheel 35. On the other end of this stud is the bevel-gear 50, which engages with the gear 40, above described.

Mounted transversely on and next the front edge of the table 2 is a raised strip 52, bolted to the table at. 53. This strip is on a level with the plate 11 and is recessed at 54 on its under side, Fig. 2, to accommodate a beveled foot 55, secured to the lower end ofr a pin 56, which extends through the strip and is held down by a spring 57, so that the foot projectsa little below the under surface of the strip. The inner edges of the plate l1 and strip 52 are adapted to receive the two transversely-sliding plates 5S, Fig. 3, each of which is beveled on its inner edge to fit the cutter or knife 37, and each has mounted on it a post 59, Figs. 1, 2, and 3. From these posts horizontal rods 60 extend toward each other, said rods being provided at their inner ends with right and left threads, respectively, and being connected by a similarlythreaded nut 61. By means of this nut the plates may be adjusted closely to the cutter, whatever may be the relative height of the plate 11. I prefer to accommodate the sliding plates 58 by a dovetail 64 on the inner edge of the plate 11 and by a bevel 65 on the inner edge of the strip 52, as shown in Fig. 2. The inner ends of the right and left screws extend through ears 68, Figs. 2 and 3, eX- tending up from the plate 69, and are set by suitable nuts 70.

I prefer to employ also a grinding-wheel 62 for the cutter, said wheel being operated by suitable mechanism 63; but I do not claim any novelty in the wheel or in its actuating mechanism.

The practical operation of the machine is as follows: The cam 21 having been set in the proper position with relation to the wrist-pin 28, and hence to the sliding bed 4, and the bed having been set by means of the mechanism 18, 19, and 2O at the proper height for the rands to be operated upon, power is applied to the machine by means of the pulley 36. The parts being in the position indicated in Figs. 1 and 2that is to say, the cam-roll 22 beingin engagement with the cam 21 at the pointillustrated and a pile of rands 8 being in the stack and said stack being next the strip 52- the cam is rotated by means of the intermediate mechanism, which includes the gearwheels 35, 34, and 33, such rotation drawing the bed 4 to and under the knife 37 38, which is rotated by means of the gear 39 40, the bevel-gear 50, and mechanism intermediate with said gear and the gear-wheel 35. During the first part of the rotation of the cam the lowest rand Sis carried forward by the bed and, pushing up the beveled foot 55, raises the pin 56 and, advancing, comes in contact with the edge 38 of the rotating knife. As t-he rand continues to advance the knife begins to cut simultaneously the outer ends 66 of the skives or bevels (indicated at Fig. 4) in the rand. As the rand advances until, say, one-half of it has passed under the knife the bed 4 slides on a horizontal plane without dipping; but when the point 67 in the cam has been brought under the cam-roll 22 the forward end of the table 2 (which supports the bed 4) begins to dip or drop, and while it is swinging down the advance of the bed causes the central portion 67, Fig. 4, of the rand to come in contact with the cutter, and the skive or bevel is completed in the manner indicated in said Fig. 4. As the cam continues to rotate the bed begins its return and the rear edge of the completed rand is brought against the vertical edge of the foot 55, with the result that the pile of rands above it continues to advance toward the front of the machine, leaving the lowest rand, which has been skived, to drop through the machine into a suitable receptacle. During the above process of skiving the rand there is a tendency for the rand to rise, and this tendency is overcome by the pressure of the sliding plates 58, under which the rand passes (see Fig. 3) as it is carried forward by the bed 4. The raised plate 1l allows room for the advancing end of the rand to pass under it during the skiving process. The operation having been completed andthe parts returned to their original position, the roll 22 is again at the highest point on the cam 21, and the skiving process IOO IIO

is applied to the next rand, which takes the place of the first rand and is held firmly down by the weight 9.

Having thus fully described my invention, what I claim, and desire to secure oy Letters Patent, is-

1. In a machine for skiving heel-rands, a circular knife adapted to rotate in a vertical plane and set to face the open end of the approaching rand;`a horizontally-sliding bed; means for supporting a rand on said bed; mechanism for moving said bed toward and from the face of the circular rotating knife whereby the rand is brought in contact with said knife and approaches it with its open end forward; and mechanism for causing the forward end of the sliding bed to swing down or dip while the knife is operating on the rand.

2. In a machine for skiving heel-rands, a circular knife adapted to rotate in avertical plane and set to face the open end of the approaching rand; a horizontally-sliding bed; means for supporting a rand on said bed; mechanism for moving said bed toward and from the face of the circular rotating knife whereby the rand is brought in contact With said knife and approaches it with its open end forward; mechanism for causing the forward end of the sliding bed to swing down orl dip while the knife is operating on the rand; and mechanism for holding down the forward end of the rand while it isbeing skived.

3. In a machinefor skiving heel-rands, a circular knife adapted to rotate in a Vertical plane and set to face the open end of the approaching rand; a horizontally-sliding bed; means for supporting a rand on `said bed; mechanism for moving said bed toward and from the face of the circular rotatingr knife whereby the rand is brought in contact with said knife and approaches it with its open end forward; mechanism for causing the forward end of the sliding bed to swing down or dip while the knife is operating on the rand; and mechanism for preventing the return of the rand and for pushing it off the bed, after the skiving process, and while the bed is returning to its original position. i

It. In a machine of the character described, the frame; the table provided with suitable ways; the recessed bed 4:, 5 adapted in its recessed portion to sustain a stack of heel-rands; the circular knife 37, 38 mounted vertically on the frame and with its cutting edge facing the bed; mechanism for raising and lowering the front edge of the table; the cam 21 mounted in the frame and provided with the slotted disk 26; mechanism intermediate of the cam and the bed whereby horizontal reciprocating movement toward and from the knife is applied to the bed; mechanism intermediate of the cam and the rear portion of the table whereby the table and bed are dipped or swung down and returned to their original knife, substantially as described.

5. In a machine of the character described, the frameg'the table provided with suitable ways; the bed adapted to reciprocate horizontally on the table; the vertically-set circular rotar;7 knife Ifacing the reciprocating bed and mounted on the frame; the plate 1l mounted on the table beyond theknife; the strip 52 mounted on the table between the knife and bed and parallel with the advancing edge of the latter; the pin 5G providedat its lower end with the beveled foot 55 and supported on said strip; mechanism for dipping and returning to its original position the rear end of the table in which the bed slides; and mechanism for rotating the knife, substantially as set forth.

6. In a machine of the character described, the frame; the table provided with suitable ways; the bedadapted tol reciprocate horizontally on the table; the vertically-set circular rotary knife facing the reciprocating bed and mounted on the frame; the plate l1 mounted on the table beyond the knife; the strip 52 mounted on the table between the knife and bed and parallel with the advancing edge of the latter; the transversely-sliding plates 58 supported at their opposite edges by said plate 11 and the strip, and extending underthe knife from opposite sides over the opposite edges or legs of the rand being skived; means for moving said sliding plates toward and from each other; mechanism for dropping and returning to its original position the rear end of the table in which the IOO bed slides; and mechanism for rotating the in combination with a horizontal sliding table carrying therands; of the vertical circular knife 37, 38 having a circular cutting edge facing the advancing bed; the ring gear- Wheel 40, 43;. the body portion of said wheel and that of the knife being provided with coincident annular grooves; and the body portion 43 of the gear-wheel being cut olf at its lower end to accommodate the rand and the mechanism for holding down the same; the segmental keys 4l lying in said coincident grooves; bolts extending through the ring 43 and setting against said segmental, keys; and mechanism for imparting rotation to the knife, substantially as set forth.

In testimony whereof I vhave signed my name tothis specification in the presence of two subscribing witnesses.

JOHN H. UNDERWOOD.

Witnesses:

E. IRviNG SAWYER, HARRY I-I. SPALDING.

IIO 

